Vulnerability Details CVE-2021-29952
When Web Render components were destructed, a race condition could have caused undefined behavior, and we presume that with enough effort may have been exploitable to run arbitrary code. This vulnerability affects Firefox < 88.0.1 and Firefox for Android < 88.1.3.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 48.5%
CVSS Severity
CVSS v3 Score 7.5
CVSS v2 Score 5.1
Products affected by CVE-2021-29952
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cpe:2.3:a:mozilla:firefox:14.0
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cpe:2.3:a:mozilla:firefox:15.0
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cpe:2.3:a:mozilla:firefox:16.0
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cpe:2.3:a:mozilla:firefox:17.0
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cpe:2.3:a:mozilla:firefox:18.0
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cpe:2.3:a:mozilla:firefox:19.0
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cpe:2.3:a:mozilla:firefox:21.0
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cpe:2.3:a:mozilla:firefox:22.0
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cpe:2.3:a:mozilla:firefox:24.0
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cpe:2.3:a:mozilla:firefox:24.1
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cpe:2.3:a:mozilla:firefox:25.0
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cpe:2.3:a:mozilla:firefox:80.0
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cpe:2.3:a:mozilla:firefox:83.0
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cpe:2.3:a:mozilla:firefox:84.0
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cpe:2.3:a:mozilla:firefox:84.1.3